Spinning machine

ABSTRACT

237,214. Kohorn &amp; Co., 0., and Lehner, A. July 17. 1924, [Convention date]. Addition to 235,527. Spinning and twisting machines; building- motions; spindle apparatus; spindle-driving apparatus; driving-arrangements.-One or more closed casings containing oil as described in the parent Specification, are adapted to enclose the gearing of artificial silk spinning machines of the centrifugal type. The shafts 61 of the guide rollers 41 and the gearing thereof are mounted in a casing 62; the traverse mechanism of the funnels 54, comprising cams 43 which oscillate a shaft 48 by means of levers 47 and are driven by worm-gearing 66, is mounted in a casing 42; and the driving gear of the centrifugal boxes 55, comprising friction wheels 58, 59, is mounted in a casing 56, the bearings of the shafts 60 being mounted in oil casings 68. Casings are provided for, say, sections of three spinning devices on each side of the machine and are connected bv pipes and may be fed from a common source. The casings 42, 62 may be connected by a lubricant-raising device such as the bucket mechanism described in the parent Specification, or a pump. The U-shaped rails 51 that carry the funnels are provided with guide rollers 67 and guide brackes 52 and are oscillated by arms 49 mounted on the shaft 48 outside the casing.

Feb. 22, v A. LEHNER SPINNING MACHINE Filed June 5, 1925 I5 Sheets-Sheet1 1,6185 9 Feb. 229 A LEHNER 3 SPINNING MACHINE Filed June 5, 1925 3Sheets-Sheet 2 Feb. 22, 1927. 1,618,539

A. L EHNER SPiNNING MACHINE Filed June 5; 1925 s SheetsSheet s Fig. 3 255 Patented Feb. 22 1927.

ALFRED LEHNER, or cnnmmrz, GERMANY.

srmnme MACHINE.

Application filed June 5, 1925, Serial No. 35,134, and in Germany June12, 1924. Q

In the spinning machines used hitherto for the spinning of artificialsilk the driving device for the thread guide is located in the interiorof the machine; the starting of the reciprocating movement of the threadguide arranged at the top of the machine is eifected by a shaftextending through the lower part of the machine frame. Each separatebobbin spindle is guided by two bearings each of which must beoiledseparately. As a rule a machine of this kind has 200 bobbins, requiring400-bearings, so that there are 400 lubricating points for the bobbinspindles alone, and 400 wheels to be oiled for driving these bobbinspindles. In addition there are numerous bearings for the shaftsextending longitudinally through the machine which drive the wheels ofthe bobbin spindles; for which reason there are a large. number ofbearings and lubricating points for effecting and transmitting themovement of the thread guide.

Consequently the spinning machines for artificial silk have theconsiderable disadvantageof the extremely large number of bearing pointsand machine parts to be lubricated, whereby the efliciency of operationis unfavorably influenced.

' ficial silkspinning machine consists in that the movable parts thereofoperate continuously :in an atmosphere of sulphuretted hydrogen and aretherefore exposed to considerable wear. and uninterrupted lubrication ofthe moving part plays a much more important part than in machines whichoperate under normal conditions. I i

According to the present invention I do away with these drawbacks n'otonly in the bobbin spinning machines, but also in the machines operatingaccording to the centrifu'gal method. In the bobbin machines the threadsissuing from the apertures of the spinning nozzle are taken up by aspinnin bobbin. while in the machines operatecl according to the t gmethod A further disadvantage of the known arti- For this reason theeflicient the spun thread is drawn over a guide roller (galette) andthereafter through a glass funnel into the interior of a rapidlyrotating centrifuge within which, by reason of centrifugal force, it isdeposited on the inner wall, forming a spun cake consisting of' crossedthread layers.

According to the present invention all the moving parts including thethread receiving and guiding means as well as the mechanisms for drivingsame closely adjoin each other and these mechanisms run in closed oilcasings communicating with one another. The arrangement here is suchthat the oil required need only be filled up in one of these casings inorder to provide all the lubricating points with the required quantityof oil. By enclosing all parts of the driving mechanism in closedcontainers the unfavorable action of the sulphuretted hydrogen and acidvapours is excluded.

In addition to this important advantage, which is obtained by theperiodic filling up of the oil being required only at a single,

easily accessible point of the machine,the consumption of lubricant isreduced to a minimum. The security that each bearing is continuallysupplied with lubricant is absolutely warranted; the necessity ofhandlubrication is obviated. I prefer mounting the driving mechanisms andlubricating tanks in the top portion or on top of the machine frame, thetank which encloses the driving mechanism for the thread receiving meansat the same time acting as a reinforcing member for the frame, and thetank which surrounds the driving mechanism for the thread guiding means,being placed on top of'the tank first mentioned and being supplied withoil from this latter by means of suitable conveying mechanism.

In the drawings aflixed to this specification and forming part thereof,two machines embodying my invention are illustrated diagrammatically byway of example.

Inpthe-drawings Fig. 1 is a cross-section, and

Fig. 2 is a partial longitudinal section ofv a bobbin spinning machine,while Fig. 3 is a cross section of amachine operated according to thecentrifuging method. Referring first to Figs. 1 and 2 the spinningnozzles 1 are arranged in a. well-known" manner in a sulphuric acid bath30 within which the viscose leaving the nozzles is converted intothreads. The thread 31 passes over the two thread guides 33 and 2,carried at the front and rear end of an arm 32 to the bobbin .3. Eachbobbin is mounted in a bobbin carrier 4 secured to the bobbin spindle 5;on the opposite end thereof is also mounted a bobbin carrier 4 for thereception of a bobbin. The bobbin spindle 5 extends through a closedcasing 6 within which it is mounted in bearings 7. Within the casingthere is mounted on the bobbin spindle 5 a worm wheel 8 driven by a worm9 on a shaft 10; the shaft 10 with worm wheel 9 is also mounted withinthe casing.

When operating spinning "machines for artifiicial'silk the arrangementof the bobbins is, as is well known, such that alternately one bobbin ofa row of bobbins rotates whilst the next succeeding bobbin remains emptyso that the latter can be brought into operation immediately when therotating bobbin has been fully wound.

Care must therefore be taken that, if the uneven bobbins are rotating,the even bobbins are stationary and vice versa. Whereas the even bobbins3 are driven by worm wheels 8, 9, the uneven bobbins 3 are driven by theworm wheels 8 9 the worm wheels 9 are mounted on shafts 10 All the wormWheels and their driving shafts, as stated, are

mounted in closed casings 6.

In the longitudinal direction of the machine there is arranged a numberof such closed casings 6 one behind the other. These casings communicatewith one, another by connecting pipes 12 (Fig. 2). If at an easilyaccessible point of the machine oil is sup plied for lubrication of themachine parts running within casings 6-then the oil level will be thesame in all the casings 6 connected together by the connecting pipes 12.The casings 6 therefore not only form the bearing casings for the saidparts, but at the same time the lubricating oil containers therefor; atthe same time the casings 6 form the upper bracing means for severalstandards of the machine. a

The arms'32, moving on both sides of the machine above the bobbin rows 3and 3 and on which the thread guides 33 and 2 are mounted, are imparteda reciprocating movement by means of which the regular Winding of thethread 31 on the bobbins 3 and 3 is effected. The two oppositelydisposed arms 32 together with the thread guides 2 and 33 are carried bya common rod 13 to which is imparted an oscillating movementtransversely to the longitudinal axis of the machine by oscillatorylevers 14, 15. On the rod 13 are seated bolts 16 over which engage theforked ends of the rods 14 and 15. The oscillatory lever 14 is securedat its upper end to a transverse shaft 17 which has imparted toit arocking motion 'The second oscillatory lever 15 is not separately drivenbut serves mainly as a guide. At its upper end 29 it is suspended by theedge of an acid proof metal piece of triangular cross-section. Thissuspension does not require being lubricated.

The remaining parts of the gear for producing the reciprocating movementof the thread guide are arranged in a. casing 24, which is mounteddirectly above the casing 6. The partition separating the casings 6 and24 is provided with a slot 25 through which extends a bucket mechanismcarried by a chain 26, which is preferably driven by a shaft 20. Theobject of this bucket mechanism is to raise oil from the lower casing 6in order to lubricate the driving mechanism contained in the uppercasing. The oil raised by the bucket mechanism is partly conducted intoa gutter 27 from which the oil passes to the bearing of the transverseshaft 17, the excess oil flowing down to the'bottom of the casing 24. Asthe slot 25 is surrounded by raised edges, the oil in the upper casing24, will be retained at a level corresponding with these edges, whilstthe excess oil flows through the slot 25 into the lower casing 6. Thelubrication of the heart shaped camis effected partly by its pointdipping as during rotation into the oil bath of the upper casing 24 andpartly bydistributing grooves (not shown) similar bucket mechanism. Thebearing points of the heart shaped cam are lubricated either by the oilflowing down the walls of the casing 24 or also by lubricating groovesreceiving oil from the bucket mechanism 26. In this manner all parts ofthe driving mechanism which effect the oscillatory movement of thethread guides, are lubricated from the common oil bath of the containers6.

Vhile the casings 6 extending in the longitudinal direction of themachine are arranged one directly behind the other, the casings 24 arespaced apart, for example in such a manner that for each field,corresponding with the length of a longitudinal casing 6, there isprovided a casing 24 and a heart shaped cam 19. The transmission ofmovement from the heart shaped cam 19 to all the reciprocating threadguide rods of thefield is effected at both ends of the rod 13, which isdirectly driven from the heart shaped cam by means of the oscillatorylevers 14, 15 to which are secured connecting rods 34 extending in thelongitudinal direction of the machine within reach of cach'of thebobbins 3 and 3 each carrying an arm 32 with the thread carriers 33 and2. The thread guides provided on both sides of the machine move insynchronism in accordance-with the oscillatory movement of the rod 13directly driven by the heart shaped cam.

In the arrangement illustrated there is shown only'a simple heart shapedcam 19,

which, as is well-known, effects a regular of the bobbins than at themiddle, an auxiliary cam may be provided in a well-known manner withinthe casing 24, which, in com bination with the main cam, produces thenon-uniform movement.

By arranging the driving mechanism for the thread guide movementwithin'the casing 24 there is obtained the advantage that this mechanismbeing disposed above the machine, isalways readily accessible from bothsides of the machine, whilein previous machines this mechanism wasdisposed in the interior of the machine frame where access to it wasrendered difficult by the spinning nozzles, sulphuric acid troughs,viscose pipes and so forth arranged on both sides. The novel arrangementof this mechanism further affords the advantagethat it receives acertain and continuous automatic lubrication from a common oil bathformed by the containers 6 communicating with one another. drivingmechanism in the upper containers 24 permits of a compact'arrangement ofthe bobbins extending along both sides of the machine. I

Spinning machines constructed according to the invention therefore areconsiderably reduced in Width, whereby supervision is improved and thepossibility of using up the machine space is considerably improved.

As far as the lower casing 26 is not covered by the upper. casing 24, itis tightly closed by a cover 28. All parts of the driving mec lanism,particularly also the bearing points are'removed from the atmosphere ofsulphuretted hydrogen; the only bearing point 29, outside the casings 6and 24 has the form of a knife edge suspension of said proof metal.

In the machine illustrated in Fig. 3 the silk thread issuing from thespinning nozzle (not illustrated) passes in a well-known manner to theguide roller or galette 41 and 'from here to a vertically moving glassfunnel 54 which conducts the thread to the The guide rollers togetherwith the corresponding glass funnels and centrifuges are arrangeduniformly at both sides of the machine. p The guide rollers 41, at eachside of the Finally the arrangement of the machine, are driven bytransverse shafts 61 in such a manner that two oppositely dismeans of apipe in such a manner that when filled with oil at one point of themachine the oil level will be uniform in all the casings 62.

Below the oil box or each oil' box 62 a further closed casing 42 ismounted in the machine frame and in this casing 42 there is mounted thedriving mechanism for the up and down movement of the funnels 54arranged at both sides'of the machine. The driving'mechanism hereconsists of a heart shaped cam or eccentric 43, mounted on a shaft 44,rotated by two worm Wheels 65, 66-on the shaft 45. The shaft 45 extendsin the longitudinal direction of the machine and where the casing 42 andthe upper oil casing 62 are divided into sections, it passes through theseparate casings. Preferably the number of oil casings 42 arranged onebehind the other and connected together by communicating pipes is such,that an oil casing is provided for about three fields consisting forexample of six successive spinmng cans. p The heart shaped cam oreccentric 43 raises and lowers a slide 46 with which engages a lever arm47. The latter is mountedon a shaft 48, also extending through the wholemachine, which carries a row of arms 49 arranged in pairs diagonallyopposite one another. On these arms 49 are suspended by means of chains50, U-shaped rails 51 which also extend through the whole machine.

While the driving mechanism 43,44, 65, 66, 45, 48, 46, and 47 is locatedWithin the casing or casings 42, the arms 49 with the chains 50 and theU-shaped carriers 51, are mounted outside the casing.

\Vhen the heart shaped cam or eccentric 43 rotates, the shaft 48 isimparted a rocking movement which is transmitted to the rails.51 so thatthese more up and down alternately. For accurately guiding these rails,guides 52 are provided at intervals, preferably on the standards of themachine, on which slide the rollers 67 carrying the rails 51.

The U -rails 51 carry arms 53 on which are mounted the funnels 54-; eachcentrifuge 55 of the machine has a funnel 54 and a corresponding arm 53.The centrifuges are rotatably mounted in a casing 56 and 57.

The centrifuges mounted in a casing 56 are driven by a disc 58 which isdriven by adhesion b a disc 59, mounted on a shaft 60 extending throughthe machine, and driven in a well known manner from one of the ends ofthe machine.

' All the bearings carrying the two shafts 60 and serving to drive theseparate centrifuges 55 are also arranged in closed oil casings 68,preferably with ring lubricating bearings.

The casings arranged one behind the other in the longitudinal directionof the machine also communicate with one another by means of pipes.Further a pipe may be extended to one end of the machine where itreceives the supply of oil and is provided with an inspection glass.

In agreement with the construction, illustrated in Fig. 1 and 2 the oilcasings 62 and 42 spaced apart one above the other can be connected by adevice for conveying lubrieating oil. In the form of constructionillustrated provision is made that at the driving side of the machinefillin points with inspection glasses are arrange both for the uppercasing 62 and for the lower casing 42 separately at different levels.

I wish it to be understood that I do not desire to be limited to theexact details of construction shown and, described, for obviousmodifications will occur to a person skilled in the art.

I claim:

1. Artificial silk spinning machine comprising a machine frame, threadreceiving means, thread guiding means, separate mechanisms for drivingsaid receiving and said guiding means respectively all adjoining eachother and arranged in the longitudinal direction in the top portion ofsaid frame and common lubricating means for a plurality of drivingmechanisms for said receiving means. 7 c

2. Artificial silk spinningmachine comprising a machine frame, threadreceiving means, thread guiding means, separate mechanisms for drivingsaid receivin and said guiding means respectively all a joining eachother and arranged in the longitudinal direction of said frame andcommon lubricating means for a plurality of driving mechanisms for saidreceiving means, said driving mechanisms and lubricating means beingarranged in the top portion of said frame.

3. Artificial silk spinning machine com prising a machine frame, threadreceiving means, thread guiding means, separate mechanisms for drivingsaid receiving and said guiding means respectively all adjoining eachother and arranged in the longitudinal direction of said frame, a commonlubricating tank for all said drivin mecha nisms for said receivingmeans an several lubricating tanks common to a plurality of drivingmechanisms for said guiding means mon transversal shaft for thereceiving means of each air.

5. Artificial silk spinning machine comprising a machine frame, threadreceiving means, thread iding means, separate mechanisms for (givingsaid receiving and said guiding means respectively all adjoining eachother and arranged in the longitudinal direction of said frame andcommon lubricating means for a plurality of driving mechanisms for saidwinding means, said receiving means being arranged in pairs, one on eachside of said frame, a common transversal shaft for the winding means ofeach pair and two shafts forming the said driving means for alternatingpairs of winding means and extending in the longitudinal direction ofsaid lubricating means.

. 6. Artificial silk spinning machine comprising a machine frame, threadreceiving means, thread guiding means, separate mechanisms for drivingsaid receiving and said guiding means respectively all adjoining eachother and arranged in the longitudinal direction of said frame andcommon lubricating means for a plurality of driving mechanisms for saidreceivin means, said driving mechanisms and lubricating means beingarranged in the top portion of said frame in superposition.

7. Artificial silk spinning machine comprising a machine frame, threadreceiving means, .thread guiding means, separate mechanisms for drivingsaid receivin and said guiding means respectively all a joining eachother and arranged in the longitw dinal direction of said frame andcommon lubricating means for a plurality of driving mechanisms for saidreceivin means, said driving mechanisms and lubricating means beingarranged in the top portion of said frame in superposition and aconveyor for supplying the uppermost lubricating means with lubricantfrom the lower one.

8. Artificial silk spinning machine comprising a machine frame, threadreceiving means, thread guiding means, mechanisms for'driving saidreceiving and said guiding means respectively all adjoinseparate withlubricant from the lower one and means associated with said upperlubricating means for distributing the lubricant.

9. Artificial silk spinning machine comprising a machine frame, threadreceiving andthread guiding means arranged on either side of said frame,vertically reciprocable funnels associated with said receiving means,two lubricating tanks superposed on top of said frame and a heart-shapedrotary cam member in the lower of said tanks for governing thereciprocating motion of said 20 funnels.

In testimony whereof I afiix my signature.

ALFRED LEHNER.

